The knee exoskeleton is gradually becoming an essential component in people's daily lives, playing a significant role in the fields of rehabilitation and industry. However, the human-machine coupling issue remains a key factor affecting exoskeleton performance. Therefore, this paper provides an overview of the design of the human-machine coupling mechanism for knee exoskeletons. In terms of structural design, the mechanisms are categorized into the simplified fixed-track mechanism, the compliant elastic mechanism, and the self-calibration mechanism, with an analysis of their performance in practical applications. Moreover, this paper discusses the general optimization steps of optimization algorithms and their applications in mechanism optimization. Finally, the challenges currently faced by knee exoskeletons are summarized, and future prospects are proposed.

Xu Huang, Xudong Yu. Overview of Human-Machine Coupling Mechanism Design for Knee Exoskeletons. Academic Journal of Engineering and Technology Science(2025), Vol. 8, Issue 2: 57-67. https://doi.org/10.25236/AJETS.2025.080208.

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